Manual Test; Rs-232C - Yamaha DSP-AX2 Service Manual

7. MANUAL TEST

The test noise is output by the noise generator with a built-in DSP from the channels specified by the sub-menu.
There are ten sub-menu items.
7. MANUAL TEST
ALL

8. RS-232C

This menu is used to check transmission of the data and the flow port of the hardware.
With the power turned off, short between pins No.2 (RxD) and No.3 (TxD) and between pins No.7
(RTS) and No.8 (CTS) of the RS-232C terminal. (Be sure to turn off the power when shorting pins.)
Start DIAG and select the menu.
There are two sub-menu items.
The signals are processed using EFFECT OFF. (The L/R signals are output using ANALOG MAIN
BYPASS setting.)
8. RS-232C
TxD/RxD DATA:XX
8. RS-232C
HARD FLOW :XX
ALL [Remote control code: 7A—00 (TAPE PLAY)]
Noise is output from all channels.
MAIN L [Remote control code: 7A—01 (TAPE RW)
Noise is output from the MAIN L channel.
CENTER [Remote control code: 7A—02 (TAPE FW)]
Noise is output from the CENTER channel.
MAIN R [Remote control code: 7A—03 (TAPE STOP)]
Noise is output from the MAIN R channel.
REAR R [Remote control code: 7A—04 (TAPE REC)]
Noise is output from the REAR R channel.
REAR C [Remote control code: 7A—05 (TAPE MUTE)]
Noise is output from the REAR CENTER channel.
REAR L [Remote control code: 7A—06 (TAPE A/B)]
Noise is output from the REAR L channel.
FRONT L [Remote control code: 7A—07 (TAPE DIR A)]
Noise is output from the FRONT L channel.
FRONT R [Remote control code: 7A—08 (CD PLAY)]
Noise is output from the FRONT R channel.
LFE [Remote control code: 7A—09 (CD STOP)]
Noise is output from the LFE (sub-woofer) channel.
RxD TxD
1 2 3 4 5
6 7 8 9
RTS CTS
TxD/RxD DATA [Remote control code: – – – – ]
This sub-menu is used to check transmission of the test data. "OK" appears when the
data is transmitted properly and "NG" when it is not.
In this mode, NULL command transmission is continued after the test command is
transmitted.
HARD FLOW [Remote control code: – – – – ]
This sub-menu is used to check operation of the flow port of the hardware. "OK" ap-
pears when the check result is satisfactory and "NG" when it is not.
DSP-AX2
20